So I did some YT compression testing.
I wanted to see how much does YT compression affect the different source files I throw at it (check the description for each source for each video).
So I will likely just stick with x264 NVENC or x265 NVENC without filters at 20,000 bitrate as that is by far the fastest to render and looks good enough compared to the other ones.
(honestly, I expected there to be a lot bigger difference between the various settings)
I will be trying 1440p next after OBS updates to a new version with better NVENC.
Also, thx YT for scrambling the order of the videos in the playlist...